Back to ICD-10 library
ICD-10-CM · FY 2026 APRIL UPDATE

Q99.81

Usher syndrome

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
Q99.811Usher syndrome, type 1Billable
Q99.812Usher syndrome, type 2Billable
Q99.813Usher syndrome, type 3Billable
Q99.818Other Usher syndromeBillable
Q99.819Usher syndrome, unspecifiedBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.